Car rear bumper



FIG. 1 is a top plan view of a car rear bumper embodying my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a rear elevational view thereof, and

FIG. 6 is a perspective view thereof. 

The ornamental design for a car rear bumper, as shown. 